The invoice has arrived, the supplier is waiting for the money, and the factory is ready to start the order or ship the goods. All that is left, it seems, is to send the transfer and wait for the deal to close.
In practice, though, the payment stage is exactly where many companies run into trouble. The bank asks for extra documents, the payment comes back, the money gets stuck somewhere in transit, or the supplier never receives it at all.
Most of these situations have nothing to do with the payment itself. They come from mistakes made before the money was ever sent.
Here are the three most common mistakes that can derail an invoice payment.
Mistake No. 1. Not checking the documents before sending money
Many companies receive an invoice and move straight to payment.
The problem is that even a small error in the paperwork can trigger additional checks or send the payment back.
The most frequent issues:
- errors in the company name;
- payment details that do not match;
- discrepancies between the contract and the invoice;
- an incorrect description of the goods or services;
- missing annexes to the contract.
Checking the documents carefully matters most on a first deal with a new supplier.
What to do
Before paying, make sure that:
✓ The payment details match across all documents.
✓ The amount matches the terms of the deal.
✓ The goods or services are named correctly.
✓ The invoice and the contract do not contradict each other.
This check takes a few minutes in practice, but it saves days of delay.
Mistake No. 2. Sending money without checking the payment route first
One of the most common scenarios in 2026 looks like this.
A company receives an invoice, sends the payment through its usual bank, and considers the matter closed.
A few days later comes a notice that the payment has been returned or that the transaction is under additional review.
The reason may lie with:
- the specifics of the beneficiary's bank;
- the requirements of correspondent banks;
- the payment currency;
- the destination country;
- the specifics of the particular deal.
In practice, the same transaction can behave very differently depending on the payment route you choose.
What to do
Before paying, it is worth knowing in advance:
- how the settlement will be made;
- which documents will be required;
- whether there are any specifics tied to the particular country or supplier.
The earlier these questions are worked through, the lower the risk of delays.
Mistake No. 3. Writing the payment reference incorrectly
Many business owners underestimate this point.
In practice, the payment reference is one of the first things everyone in the settlement chain looks at.
Common mistakes:
- wording that is too generic;
- no mention of the invoice;
- a reference that does not match the one stated in the documents;
- errors in the contract or invoice number.
Even when the deal itself is entirely legitimate, inaccuracies like these can lead to further questions and checks.
What to do
Before sending money, check:
✓ The invoice number.
✓ The contract number.
✓ That the goods or services are described correctly.
✓ That the payment reference matches the documents.
This is one of the simplest ways to reduce the chance of questions about the transaction.
Bonus: the mistake that costs the most
Many companies only start digging into their documents after the bank has declined the payment.
It is far cheaper to check the deal in advance than to fix the problem after the money comes back.
Every returned payment means lost time, a risk of missing delivery deadlines, and extra costs.
Checklist before paying an invoice
Before sending money, make sure:
✓ The supplier has been checked.
✓ The payment details have been checked.
✓ The invoice has been checked.
✓ The contract has been checked.
✓ The documents for the deal are ready.
✓ The payment reference has been agreed.
✓ The settlement route is clear.
With every point covered, the chance of running into problems drops sharply.
How EAST PAY helps you avoid all this
At EAST PAY, the work starts before the payment is made.
Our specialists help review the deal documents, flag potential risks, assess the settlement structure, and prepare the transaction before any money leaves the account.
This approach is particularly valuable when you are paying suppliers in China, South Korea and Japan, and when you are paying for equipment, vehicles, real estate and other international deals.
Conclusion
In most cases, invoice payment problems come not from the supplier or the bank, but from mistakes made while preparing the deal.
Checking the documents, the payment details and the payment structure takes far less time than sorting things out after a returned payment or a rejected transaction.
If you already have an invoice and an international payment coming up, it makes sense to review the deal in advance and confirm that every element of the settlement is set up correctly.